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Finding the Fourth Proportional to 124,882.84, 172,339.68 and 68,293

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Solution

The fourth proportional to 124,882.84, 172,339.68 and 68,293 is: 94,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,882.84 : 172,339.68 = 68,293 : x
  2. Step 2: Convert to fraction form
    124,882.84/172,339.68 = 68,293/x
  3. Step 3: Cross multiply
    124,882.84x = 172,339.68 × 68,293
  4. Step 4: Simplify right side
    124,882.84x = 11,769,593,766.24
  5. Step 5: Solve for x
    x = 11,769,593,766.24/124,882.84
  6. Step 6: Final answer
    x = 94,245.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.